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Westward pipe tap 1 inch 11 NPT 5 flutes high speed steel bright finish

Westward

Westward 5PXH6 Pipe Tap 1"-11-1/2 NPT 5 Flutes

SKU CH-SQ59-G5GKX

Pipe tap cuts 1"-11-1/2 NPT threads with five flutes in high-speed steel

  • Product typeHole, Drill, Bore & Wire Gauges
  • Cuts 1"-11 NPT threads with five-flute high-speed steel
  • Taper design starts threads cleanly in pipe and conduit
  • Right-hand cut suits standard threading operations
  • 75 % thread engagement from 1.1406 in drill size
  • Bright finish resists corrosion during storage

Westward NPT Pipe Tap 1"-11-1/2

This Westward pipe tap cuts internal NPT threads in pipe and conduit fittings. It is sized for a 1 inch nominal pipe thread with 11-1/2 threads per inch. The tool suits maintenance technicians and plumbers who need to create or repair tapered pipe threads on site or in the workshop.

Tapered 5-flute high-speed steel construction

The taper design starts threads easily and the five flutes clear chips efficiently during cutting. High-speed steel provides wear resistance for threading steel and iron pipe. A bright uncoated finish reduces friction. The right-hand cut matches standard NPT thread direction. The 75 percent thread drill size is 1.1406 in.

Class 3B fit for standard pipe connections

The tap produces a Class 3B fit suitable for general-purpose pressure-tight joints. Thread length measures 1 3/4 inches within an overall length of 3 3/4 inches. It is not intended for high-volume production threading or for non-NPT thread forms such as straight mechanical threads.

How it compares

Measured against everything we stock in Utility & Specialty Hand Tools, at today’s prices. Recalculated every night.

Price $60.99
Pricier than about 77% of the 2,474 comparable items (median $23.99).

Specifications

Product
Brand nameWestward
Product typeHole, Drill, Bore & Wire Gauges

Questions about this item

How long can the 1"-11-1/2 NPT tap cut threads before the 5 flutes need resharpening?

The high-speed steel body with five flutes resists wear during repeated right-hand threading, but tool life depends on workpiece material, lubrication and cutting speed.

Does the bright uncoated finish cause the tap to run hot during all-day threading?

The uncoated high-speed steel dissipates heat through the five flutes; steady cutting fluid flow keeps temperature stable during continuous use.

What drill bit must I already own to prepare the hole for this tap?

A 1.1406 in drill produces the 75 percent thread depth required for the 1"-11-1/2 NPT thread form.

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